Heat the oven to 200C (180C with fan) gas mark 4. Cut the cauliflower into florets and place into a saucepan. Cover with water and bring to the boil until just cooked.

Whilst the cauliflower is cooking make the Carnation white sauce. Pour the Carnation Evaporated Milk into a non-stick saucepan and bring to a simmer. Stir occasionally Mix the corn flour with 150ml water. Pour into the simmering cook with it. Allow to boil for 1 minute until thickened. Finally add half the grated cheese.

Place the cauliflower in a casserole dish, pour over the cheese sauce. Sprinkle with the remaining cheese.

Place in the oven and cook for 20 minutes or until the top is golden brown.